Cock for gas-fixtures.



No. 69|,502. Patented Ian. 2|, i902.

.1. n. STURGES.

COCK FOB GAS FIXTURES.

(Application filed June I 1901.)

(No Model.)

. l 1 I I" x wmvsss s:

m: "cams PETERS co mo-raumm WASHINGTON u r:

burner.

UNITED STATES PATENT OFFICE.

JAMES D. STURGES, OF CHICAGO, ILLINOIS.

COCK FOR GAS-FIXTURES.

SPECIFICATION forming part of Letters Patent No. 691 ,502, dated January21, 1902.

Application filed June 1, 1901. Serial No. 62,719- (No model.)

This invention has for its object to provide novel features ofconstruction for the cock of a gas-fixture which adaptit to completelyout off the flow of gas to the burner when the plug of the cock isturned in one direction until its rotation is arrested by a stop andpermit a graduated but diminished How of gas to the burner when the plugis turned oppositely until arrested by another stop,

the full fiow of gas being afforded when the plug is adjusted so as tolocate projections thereon intermediately of the stops or abutments onthe body of the burner.

The invention consists in the novel construction and combination ofparts,as is hereinafter descrihed,and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorrespondingparts in all the figures.

Figure 1 is a partly-sectional side view of the improvement applied to agas-burner and showing the gas-passage in the cock fully open. Fig. 2 isa transverse sectional view on the line 2 2 in Fig. 1. Fig. 3 is atransverse sectional view of the same substantially on the same line,but showing the plug of the gas-cock turned to completely out off theflow of gas to the burner. Fig. 4 is a like view showing the plug of thecock turned oppositely for part of a revolution, so as to adjustthe'gas-passage for a small flow of gas to the burner. Fig. 5 is asectional plan view substantially on the line 5 5 in Fig. 1, showing theadjustment of the plug of the gascock for alfording a free flow of gasto the Fig. 6 is a similar view, but showing the plug of the cockadjusted to completely close the gas-passage controlled thereby. Fig. 7is a similar view, but showing the plug of the cock adjusted to permit alight flow of gas therethrongh; and Fig. 8 is a detached perspectiveview of an adjustable stop forming a feature of the invention.

. In the drawings,8indioates the body of the cock, 9 a gasburnerattached to one end thereof, and 10 the plug-valve of the cook. The body8 is provided at one end with a socket-enlargement a, designed forconnec- I tion with a tubular portion of a gas-fixture,

(not shown,) and at the opposite end a suitable opening is formed, asusual, for the accommodation of the lower end of the burner 9, which maybe of any preferred kind.

In the body 8 alongitudinal bore Z7 is formed, which extends from thesocket a to the upright opening for the burnerat the opposite end of'thebody.

At a point between the socket and burner a preferably-coniform orifice ois formed transversely in the body 8 and intersects the longitudinal gaspassage or bore 1), and in said orifice is fitted the plug-valve 10,that atthe smaller end thereof. is provided with the usual washer d andkeeper-screw e, the latter having a threaded engagement with a tappedperforation formed in the smaller end of the plug, whereby the latter isheld in the body 8 gas-tight, but free to receive rotatable adjustmentby the manipulation of the flattened grip-piece 10 upon the oppositeprojecting end of the plug 10.

As shown, a segmental collar g extends from the body 8 at the larger endof the coniform orifice c, said collar terminating in two shoulders g 9that may with advantage define the arc of the segmental collar as lessthan a semicircle in extent, as clearly shown in Figs. 5, 6, and 7.

Two stop-pins h h are provided, which are screwed into threadedperforations in the plug 10 in the same vertical plane, but separated asuitable degree. These plugs h h are adapted to traverse the spacebetween the shoulders g 9 when the plug 10 is rotatably moved, and itwill be understood that when the stop-pin it has contact with theshoulder g the transverse opening I) in the plug will be disposed at'ornear a right angle to the longitudinal gas-passage bin the body 8 of thecock, which of course will cut 0d the flow of gas to the burner 9, thisdisposal of parts being indicated in Figs. 3 and 6. The pin h has aneccentric head if formed thereon, which head will contact with theshoulder 9 when the plug 10 is rotatably moved so as to cause such acontact.

It will be seen in Figs. 4 and 7 that the head 71. is so relativelypositioned as to cause the gas-passage b in the plug 10 to be slightlyopened when the swell on this eccentric head is turned away from theshoulder 9 and the low side of said head has enforced contact therewithwhen the plug is rotatably moved to eftect an impingement of the headupon the said shoulder.

If it is desired to increase the width of'the crevice so, that affords asmall passage for gas to the burner 9, the application of a screwdriverto the kerf in the eccentric head 71. will enable the adjustment of saidhead so as to cause the swell on the head to have contact with theshoulder, and obviously the degree of opening given atnc may be exactlydefined by a turning movement of the headed pin 71.. I

In some cases it may be found sufficient to employ only the headed pin hand so position it and the shoulder g that the gas-passage will beclosed when the head 7L2 has contact with said shoulder, but be slightlyopen when the headed pin contacts with the other shoulder 9 It isevident that the rocking adjustment of the plug 10 so that the pins 71.h are positioned between the shoulders g will open the gas-passagethrough the plug 10 more or less, a full flow of gas therethrough beingaf- I forde'd when the pin it is about midway between said shoulders.

The improvement affords simple, practical,

. andreliable means to prevent complete 010- sure of the gas-passagethrough the gas-cock to'a burner that is to be kept just lighted withoutaffording illumination, so as to be ready at any time to shed full lightby simply turning the plug or key of the gas-burner,

so as to open the passage therethrough.

Having thus described my invention, I

.elaim as new and desire to secure by Letters may be rotatably adjusted,said projection contacting with the shoulder when the plug is turned inone direction, to prevent complete closure of the transverse passage,and by rotatable adjustment define the degree of opening thus provided.v

2. In a gas-controlling cock of the character described, the body havinga longitudinal bore therein and a transverse orifice intersecting thebore, a plug held to turn in the orifice and having a transversegas-passage adapted to be alined with the bore of the body, twoprojections on the body at one end of the transverse orifice therein, apin onthe plug adapted to contact with one of the projections when theplug is turned sutficiently to close the gas-passage in the plug, and aneccentrically-headed pin on the plug adapted by rotatable adjustment todefine .a graduated opening in the plug when said head c0ntacts with theother projection on the body. In testimony whereof I have signed my nameto this specification in the presence of two subscribing witnesses.

JAMES D. STURGES. Witnesses:

JOHN H. CAMERON, WM. T. FENToN.

